5-Pack Silicone O-Ring Gaskets for 4.5 & 5.2cm Vacuum Bottles

Keep your favourite thermal cup or vacuum bottle leak-free with these premium food-safe silicone sealing O-rings. This handy 5-pack gives you plenty of spares so you'll never be caught off guard by a worn-out lid gasket again.

Product Highlights

• Food-safe silicone — BPA-free, phthalate-free, and latex-free for safe everyday use with hot or cold drinks.
• Universal fit — designed for thermal cup and vacuum bottle lid covers with an outer diameter of 4.5 cm or 5.2 cm.
• Tool-free replacement — simply roll off the old gasket and snap the new one into place in seconds.
• Durable & long-lasting — high-quality silicone resists heat, moisture, and daily wear to maintain a consistent, airtight seal.
• 5 pieces included — always have a fresh replacement on hand when you need it.
• Color: White

Specifications

• Material: Food-grade silicone
• Compatible lid outer diameters: 4.5 cm / 5.2 cm
• Package includes: 5 × silicone sealing O-ring gaskets
• Color: White

Note: Dimensions are hand-measured; please allow for a minor tolerance. Screen color calibration may cause slight color variation from the actual product.

Made in Mainland China.

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Learn more: Nutrition.gov on cooking and food safety

Frequently Asked Questions

Q: What sizes of vacuum bottle lids do these silicone O-ring gaskets fit?

A: These silicone sealing O-rings are designed to fit thermal cup and vacuum bottle lid covers with an outer diameter of 4.5 cm or 5.2 cm. Always measure your existing lid gasket before ordering to ensure the correct fit.

Q: Are these gaskets safe to use with hot drinks?

A: Yes! The gaskets are made from food-grade silicone that is BPA-free, phthalate-free, and latex-free, making them perfectly safe for use with both hot and cold beverages.

Q: How do I replace the old gasket on my thermal cup lid?

A: No tools are needed. Simply roll or peel the old gasket off the lid groove, then press and roll the new silicone O-ring into place. The entire process takes just a few seconds and restores an airtight seal to your vacuum bottle or thermos lid.